Gaya APA

Nelson, R, C., Swanson, C, P. (NULL). Guidance and counseling in the elementary school . New: New York: Holt, Rinehart and winston; 1972.

Gaya MLA

Nelson, Richard, C., Swanson, Carl, P.. "Guidance and counseling in the elementary school". New: New York: Holt, Rinehart and winston; 1972, NULL. Text.